‘CIRCKDE’: module to perform several kernel density estimations for circular data, including linear and circular representation. These programs permit to specify several weight functions: Uniform, Triangular, Epanechnikov, Biweight (Cuartic), Triweight, Gaussian, Cosinus and von Mises.
A routine to obtain several bandwidths adapted for circular data (using circular dispersion estimation) and an ASH-WARP implementation to save calculation time with big data sets.
Authors:
Isaías Hazarmabeth Salgado-Ugarte & Verónica Mitsui Saito-Quezada
Universidad Nacional Autónoma de México
Support: email isalgado@unam.mx
INSTALLATION FILES
circbw.ado, circbw.sthlp, circgph.ado, circgph.sthlp, circkde.ado, circkde.sthlp, circkden.ado, circkden.sthlp, circkwarp.ado, circwarp.sthlp, cirkdevm.ado, cirkdevm.sthlp, i1kappa.ado, i2kappa.ado
Examples (do-files):
circkdex1, circkdex2, circkdex3, circkdex4, circkdex5, circkdex6
Data files (Stata):
azimuthdata.dta, boxturtle.dta, dragonfly2.dta, fisherfeldes2.dta, meteorofeszcor6.dta
Documentation: kdecirculardata.pdf, kdecircular.pdf, circwarp.pdf